Retrieving text from xml message format

Hi All!
can anyone help me out in this issue?
Im developing an application on UPNP, im using SSDP message for discovering the device in a network.
SSDP message is in XML Format:
for EX:
Host:255.255.255.239:1900
Mx:1800s
NT:SSDP:alive
NTS:upnp:rootdevice
-
-

As i ve various types of devices in the network i have to extract NTS feild and should match with the ST(search Target) field in the search request to get a device response.
can anyone help me out to extract NTS field from this SSDP message.
Thank you all.

re: Retrieving text from xml message format

first, your example isn't XML.
second, what programming language do you want to use for this?

there are 2 basic ways:
- treat the XML as text and do a string search
- treat the XML as such and apply your programming language's XML functions